The most common and most likely answer to this crossword clue is the 9 letter word PETROLEUM
P
E
T
R
O
L
E
U
M
More clues leading to the result PETROLEUM
- Maybe crude part in hissy fit? I'm not sure
- Miles to follow own special post at Universal Oil
- Let me pour liquid mineral
- Part of one’s faithful dog? I’m not sure Rover needs it!
- REME worked with PLUTO to supply this
- Sort of jelly prepared in our temple
- Oil neck part with hesitation?
- Reme and Pluto managed to supply it
- Oil part in silent power turning over
- Troubled, let me pour oil?
Buddy explains!

The straight part
We know that "Oil" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case oil = petroleum.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does PETROLEUM mean?
PETROLEUM noun- A flammable liquid ranging in color from clear to very dark brown and black, consisting mainly of hydrocarbons, occurring naturally in deposits under the Earth's surface